Can be inserted into standard 6.35mm or 1 or 4" 28 position. Use this holder to easily organize your screwdriver bits. The denture chuck is made of strong plastic as it is a durable material with natural heat and chemical resistance. The articulating jaws open fully, giving you easy access to all drill bits. Product Description Features: While they make our nails prettier, the wide variety of nail drill sets and many sanding belts make it difficult for us to store them and help us find them quickly. So this collet can help solve your problem and make storage easier. Large storage space to meet your various needs. High quality material, more resistant to drop and waterproof. Comfortable to wear and lighten the burden. Specification: Weight: 200 grams material: plastic The package includes: 1 X Denture Bit Holder Notice: 1. Due to manual measurement, please allow a little deviation. 2. Due to the different display and lighting effects, please allow slight color difference. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.